Freight car truck



July 12, 1932. Y J. J. TATUM 1,867,114

FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Sheets-Sheet l gnvcnfoz July 12,1932. J TATUM FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Shee-tsSheet 2July 12, 1932. J J TATUM 1,867,114

FREIGHT CAR TRUCK Filed Aug. 28, 1929 4 Sheets-Sheet 4lllllllfiilllllllillliliillllllliiiiiiiilfliiliiiimliiiiiififimunmliliiiiiiifiww 7 III/III/ so as to provide against binding of thetruck the same. v

Patented July 12, .1932

UNITED STATES JOHN J. TATUM, OF. BALTIMORE, MARYLAND FREIGHT CAR TRUCKApplication filed August 28, 1929, Serial 1T0. 388,991.

From service experience it has been established that it is desirable touse trucks under freight cars of flexible structure of the type shown inmy application, Serial No. 285,899,

in curves, thus insuring free movement of the trucks through curveswhich results in greater tonnage being drawn by the locomotive than ispossible to be had with rigidly constructed trucks.

On account of this flexibility, there are,

necessarily, loose connections of one part of the truck to another part,allowing for free movements of the parts. These conditions result inmore or less wear where one part of the structure chafes againstanother, and it is one of the objects of my invention to provide for thecorrection of these conditions by using assembled parts that can bereadily and cheaply renewed, thus eliminating the scrapping of the mainstructures, which results in longer life of the expensive parts of thetruck.

A further object of my invention is to provide a removable wear plateassembled on the I wearing face of the column post of the truck.

A further object is to provide removable wear plates for the bolsters.

A further object is to provide a wear plate forthe rear end of thejournal box.

A further object of my invention is to provide automatic lubrication inthe journal box and with these and other objects in view, my inventionconsists of the parts and combination of parts hereinafter pointed out.

In the drawings:

Figure 1 is a vertical sectional view through the side frame of a truckwith integral journal box, including the wheel and journal.

Figure 2 is a detail top plan View of the side frame of a truck andjournal box with the bolster in position.

Figure 3 is a side elevation of a side frame and journal box embodyingmy invention, associated parts of the truck being shown.

Figure 4 is a vertical sectional view of the truck side frame throughthe journal box.

Figure 5 is an end elevation of the rear splash pan.

Figure 9.

, Figure 6 is a transverse sectional yiewof the same. i a

Figure 7 is an end elevation of'the front splash pan. 1 i Figure-8 is atransversesectional view of Figure 9 is a top plan view 'ofthe'journalbearing showing the oil distributing grooves. Figure 10 is a transversesectional view of Figure 11 is a detail sectional view.

The reference numeral 9 designates the sideframe ofa car truck,preferably of'cast steel, having a journal box'lO cast integrallytherewith. On the rear end of the journal box-I provide a removable backplate 11 by'means of-the bolts '12, the heads of which are positioned inthe annular groove "13 formed in said plate-11. -Between the plate 11and the journal box I secure agasket 14. The plate '7 11 is, as shown,dish shape or'pan'shape, the flanges 15 offsetting it-fromthe face ofthe box to provide a packing spaceor chamber and in this space orchamber' I- place a felt washer 16 which functions to prevent the oilfrom getting out of the journal box while the gasket 14: preventsleakage of oil'at the joint'between'the plate 11 and the journal box. Iprovide a' flat spring steel ring 17 around the felt washer 16 to retainthe washer in proper position tight against the axle; The journal box isprovided at its front end with a front plate 18, having a filling spout19 closed by a plug 20, there being a gasket "21 between the plate 18and the journa lbox to prevent oil leakage.

lhe purpose of the removable back 11"o-f the journal box is to providefor" the renewal of the'back when it is worn from coming in contact withthe wheel'hub 22, which renewal cost is much less than the cost would beof scrapping the entire journal box or the entire side frame of'thetruck should thejOurnal box be cast integral with the side frame.

- On the back of the journal 23, at the journal box pit, there is a panshaped oil distributor 24; having corrugated sides 25. Thisdistributoris placed on the journal box pit of the axle 26 by'pressureso that as the axle rotates the oil distributor 24 rotates and oil"connection with distributor 24a, carries'the oil up in the same way.

The ring on the axle 23 is used only when this portion of the axle is.smaller than standard A. R. A. dimensions enabling me to make the rearend oil distributor 24e-for a standard axle,the ring, serving to take upwhatever difference that may be existing;

This ring. has a groove in which the inner edge of the disc 24 issprung, whereby the disc issecured thereto. 7

The reference numeral 31 designates an overhangiw edge orlip of the dustguard opening near the bottom of the box, the pur poseof which is-toprevent oil from swishing up to the dustguard. The lower dust guardwall. is bevelled as, at 32 so that when oil swishes against the dustguard it will freely run backinto the bottom of the box. This vmethod.of lubrication eliminates the use of saturated waste inthe bottom of thejournal 'box'and provides for the lubrication of the journal tree oil,

. The side frame column post 33 is provided with a removablewear plate34 riveted to the column. post, and can be readily removed ind renewed.by the removal and replacement ofthe rivets. The bolster 35 is providedwith rsremevable wear plate 36 which is riveted to side of the bolsterthat chates against'the plate 34-011: the column post.

At the bottom o-fthe side frame; I provide melongated slot 37 in whichis placed the rod 38-which extends fromside frame to side imme onthetruck.v This rod eliminates the use oi'the conventional spring plankformer- 11y used 8P0$ the truck, and reduces the weightvand' cost of thetruck This is accomplished by arrangingthe floorspace on the top of thelower section of the truck side from between the two column posts ofsufficient size to provide for the sealingof the helical springs placedunder the ends of the truck bolster which carry the; load of the car.

The tie rod 38 provides for flexibility in the ttuck bein'g positionedin the elongated slot 37, and. eliminates the rigidity formerly presentin. the use of the conventional spring The inner portion of the top edgeof the bearing flangeistapered as at 33' providingan intake for the oilfromlthe oil distributor on the axle to the top of the journal, a

- In Figure 11' I have shown the spring seat 5001 34 surrounded by anupward projecting lange'35, fromits rear andforward edges to preventdisplacement of the springs from the bolster between the column forcecaused'by the lateral movement of the post. What I claim is:

1. In combination, in a car truck, a journal box, a journal in said box,a disc secured to said journal having a bodily crimped annular flange,said crimps of the flange forming corrugations to pick up oil in thebottom of the box and convey it to the top of the box and means toconvey the oil to the top of the journal, V

2. In combination, in a car truck, a ournal box, a journal in said box,a sheet metal disc secured at the rear of the journal within said boxand flanged toward the'front of the box,

' and a sheet metal disc secured to the front end of the journal andflanged towardthe rear of the box, saiddiscs rotating through oil in thebottom of the box and having their flanges'bodily crimped to provideundulating 7 surfaces forming pockets to pick up oil and convey it tothe top of the box. 7

3. In a' bearing, a journal box, a journal arranged therein, a journalbearinglocated on the top of the journal and provided with its top andsides, and rotating discs carried oil distributing channels extendingthrough by the" journal and having crimped flanges forming. corrugationsfor raising oil from the bottom of the box to said channels. 1

4. In a car journal, a journal box having an oil reservoir at its base,a journal extending into the box, 7 anannular oil elevating membersurrounding the journal and having an edge portion spaced from anadjacent part i of the journal, andv a grooved distance-take" up ringsurrounding the; journal and disposed between the same and said edgeportion of the oil elevating member, said edge portion of the oilelevating member being secured in said groove. 7

5. In a car journal,a journal boxhaving an oil reservoir at its base, ajournal extending into the journal box, a journal hearing at the top ofthebox having oil receiving channels at the ends thereof and oil feedports extending from said channels to supply oil to thejournal, anddiscs at the ends of the journal having annular flanges overhanging theends of the bearing and dipping into the oil in the reservoir andcrimped to provide undulating pockets therein to convey oil from thereservoir to the said oil receiving channels in the bearing.

In testimony whereof I afiix my signature.

JOHN J, TATUM.

